biostudies-literatureRosenthal JNIGMS NIH HHS5536-7https://www.ebi.ac.uk/biostudies/studies/S-EPMC2866442biostudies-literatureUnknown132(16)The synthesis, photophysical properties, and a biological application of BODIPY-triazole 1 (BOT1) are described. BOT1 juxtaposes a BODIPY fluorophore with a tripodal ligand platform via a triazole bridge. The triazole linker is afforded by azide-alkyne "click" chemistry and comprises the third arm of the tripodal architecture. BOT1 binds Cu(2+) in aqueous solution to form a Cu(II)[BOT1] complex in which emission from the BODIPY moiety is efficiently quenched. This complex exhibits a prompt turn-on response when exposed to nitroxyl, and this emission response is specific to HNO over other reactive nitrogen and oxygen species. Notably, Cu(II)[BOT1] does not fluoresce in the presence of nitric oxide, making this system the first discrete molecular probe capable of detecting HNO over NO under Journal of the American Chemical SocietyDirect detection of nitroxyl in aqueous solution using a tripodal copper(II) BODIPY complex.PMC2866442F32 GM080060F32 GM080060-02F32 GM080060-03Lippard SJRosenthal JfalseDirect detection of nitroxyl in aqueous solution using a tripodal copper(II) BODIPY complex.The synthesis, photophysical properties, and a biological application of BODIPY-triazole 1 (BOT1) are described. BOT1 juxtaposes a BODIPY fluorophore with a tripodal ligand platform via a triazole bridge. The triazole linker is afforded by azide-alkyne "click" chemistry and comprises the third arm of the tripodal architecture. BOT1 binds Cu(2+) in aqueous solution to form a Cu(II)[BOT1] complex in which emission from the BODIPY moiety is efficiently quenched. This complex exhibits a prompt turn-on response when exposed to nitroxyl, and this emission response is specific to HNO over other reactive nitrogen and oxygen species. Notably, Cu(II)[BOT1] does not fluoresce in the presence of nitric oxide, making this system the first discrete molecular probe capable of detecting HNO over NO under 2010-01-01T00:00:00Z2010 Apr2025-04-21T16:08:03.875Z2019-03-26T23:28:37ZS-EPMC28664422035572410.1021/ja909148v